package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithATTRSVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import com.atguigu.gulimall.product.vo.skuItemVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import org.springframework.util.StringUtils;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
    @Autowired
    private AttrService attrService;



    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPagebyid(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        //select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%)
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((obj) -> {
                obj.eq("attr_group_id", key).or().like("attr_group_name", key);
            });
        }

        if (catelogId == 0) {
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        } else {
            wrapper.eq("catelog_id", catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }
    }

    @Override
    public List<AttrGroupWithATTRSVo> GetattrGroupWithAttrsBycatalogId(Long catalogId) {
        List<AttrGroupEntity> attrGroupEntityList = this.list(new LambdaQueryWrapper<AttrGroupEntity>().eq(AttrGroupEntity::getCatelogId, catalogId));
        List<AttrGroupWithATTRSVo>  attrGroupWithATTRSVos = attrGroupEntityList.stream().map(group -> {
            AttrGroupWithATTRSVo attrGroupWithATTRSVo = new AttrGroupWithATTRSVo();
            BeanUtils.copyProperties(group,attrGroupWithATTRSVo);
            List<AttrEntity> relationAttr = attrService.getRelationAttr(attrGroupWithATTRSVo.getAttrGroupId());
            attrGroupWithATTRSVo.setAttrs(relationAttr);
            return attrGroupWithATTRSVo;

        }).filter(item->{
           return item.getAttrs() !=null&&!(item.getAttrs()).isEmpty();
        }).collect(Collectors.toList());

        return attrGroupWithATTRSVos;
    }




    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId,Long catalogId) {
        //1.查出当前spu对应的所有属性分组，并且分组的属性需要根据分组id查询
        AttrGroupDao attrGroupDao = this.baseMapper;
        List<SpuItemAttrGroupVo> spuItemAttrGroupVos= attrGroupDao.getAttrGroupWithAttrsBySpuId(spuId,catalogId);
        return spuItemAttrGroupVos;
    }


}

